dynamodb_table_create · AWS MCP Server MCP: Risk & Policy

WHAT IT DOES

What dynamodb_table_create does on AWS MCP Server

AI agents use dynamodb_table_create to create or update resources in AWS MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your AWS MCP Server environment.

WHY IT NEEDS A POLICY

Why dynamodb_table_create needs a policy

Creating a DynamoDB table is a reversible write operation that establishes a new data structure and incurs AWS costs through resource provisioning. It modifies cloud infrastructure state but can be undone via table deletion. This is more severe than simple data writes (Write > Read) but less severe than irreversible data deletion (not Destructive) or financial transactions (not Financial, though it does incur costs).

From the tool's definition Tool description states 'Create a new DynamoDB table'. The verb 'create' and action of provisioning a new database table indicate data structure creation with side effects.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

dynamodb_table_create Rate-limited

dynamodb_table_create stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "dynamodb_table_create": {
      "limits": [
        {
          "counter": "dynamodb_table_create_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches AWS MCP Server, so you can run agents against it safely.

FAQ

Questions about dynamodb_table_create

What does the dynamodb_table_create tool do? +

Create a new DynamoDB table. It is categorised as a Write tool in the AWS MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on dynamodb_table_create? +

Register the AWS MCP Server MCP server in PolicyLayer and add a rule for dynamodb_table_create: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches AWS MCP Server. Nothing to install.

What risk level is dynamodb_table_create? +

dynamodb_table_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit dynamodb_table_create? +

Yes. Add a rate_limit block to the dynamodb_table_create rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block dynamodb_table_create completely? +

Set action: deny in the PolicyLayer policy for dynamodb_table_create. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides dynamodb_table_create? +

dynamodb_table_create is provided by the AWS MCP Server MCP server (rishikavikondala/mcp-server-aws). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.